Book Image

Network Analysis using Wireshark 2 Cookbook - Second Edition

By : Nagendra Kumar Nainar, Yoram Orzach, Yogesh Ramdoss
Book Image

Network Analysis using Wireshark 2 Cookbook - Second Edition

By: Nagendra Kumar Nainar, Yoram Orzach, Yogesh Ramdoss

Overview of this book

This book contains practical recipes on troubleshooting a data communications network. This second version of the book focuses on Wireshark 2, which has already gained a lot of traction due to the enhanced features that it offers to users. The book expands on some of the subjects explored in the first version, including TCP performance, network security, Wireless LAN, and how to use Wireshark for cloud and virtual system monitoring. You will learn how to analyze end-to-end IPv4 and IPv6 connectivity failures for Unicast and Multicast traffic using Wireshark. It also includes Wireshark capture files so that you can practice what you’ve learned in the book. You will understand the normal operation of E-mail protocols and learn how to use Wireshark for basic analysis and troubleshooting. Using Wireshark, you will be able to resolve and troubleshoot common applications that are used in an enterprise network, like NetBIOS and SMB protocols. Finally, you will also be able to measure network parameters, check for network problems caused by them, and solve them effectively. By the end of this book, you’ll know how to analyze traffic, find patterns of various offending traffic, and secure your network from them.
Table of Contents (20 chapters)

IPv6 principle of operations

With the dawn of the dot-com bubble in early 1990s, more businesses started relying on IP networks, which meant a drastic depletion of IPv4 address space. Soon the industry realized that there was a need for a new network layer protocol that could accommodate and gratify the growing network requirements. This made the industry start working on next-gen IP (IPng).

While the initial efforts were performed to extend the Stream Protocol (ST2) as a quick fix for the network address depletion, features such as Network Address Translation (NAT) and Dynamic Address Allocation (such as DHCP) addressed the exhaustion to a certain extent, allowing the industry enough time to work on IPng. IPng was developed to not only tackle the address space challenge but also consider the other limitations and challenges that were facing IPv4. ST2 was officially designated...